Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.Smartec Tray Return Robot is provided with several high-technology functions.for example,Autonomous Navigation,Autonomous Obstacle,Autonomous Charging,Detection of Food Tray,Emergency/Pause Stop,Voice Reminding,and etc.